Hay-press.



raw. EHMAN. I

HAY PRESS.

APPLIQATION FILED DBO. 28, 1909.

Patented Jan. 17, 1911.

2 SHEETS-SHEET 1 F. W. EHMAN.

HAY PRESS.

APPLIOATION FILED DEC. 28, 1909,

Patented Jan: 17, 1911.

2 SHEETS-SHEET 2.

E4727; Viz/m FRANK WILLIAM EHMAN, OF SILVER CREEK, MISSISSIPPI.

HAY-PRESS.

Specification of Letters Patent.

Patented Jan. 17, 1911.

Application filed December 28, 1909. Serial No. 535,296.

To all whom 'it may concern:

Be it known that I, FRANK WILLIAM EI-IMAN, a citizen of the UnitedStates, residing at Silver Creek, in the county of Lawrence and State ofMississippi, have invented new and useful Improvements in Hay-Presses,of which the following is a specification.

This invention relates to improvements in hay presses and has for itsobject the provision of a device of that kind provided with acompression boX or cylinder and a plunger adapted to be reciprocated insaid cylinder and a rotatable beam operated by a draft animal andadapted at each half revolution to reciprocate the plunger.

With the above and other objects in view, as will more fully hereinafterappear the present invention consists of certain novel details ofconstruction and arrangement of parts hereinafter to be more fullydescribed, illustrated in the accompanying drawings and moreparticularly pointed out in the appended claims, it being understoodthat various changes in the form, proportion, size and minor details ofthe device may be made within the scope of the appended claims, withoutdeparting from the spirit or sacrificing any of the advantages of theinvention.

In the accompanying drawings forming a part of the specification, Figure1 is a plan view of the device. Fig. 2 is a side elevation thereof. Fig.3 is a sectional view on the line 33 of Fig. 1. Fig. 4: is a transversesectional view on the line 44 of Fig. 2. Fig. 5 is a side elevation ofthe operat ing beam on the line 5-5 of Fig. 1. Fig. 6 is a detail sideelevation of the oscillating lever. Fig. 7 is a detail perspective viewof the plunger and a fragment of the'plunger rod. Fig. 8 is a transversesectional view on the line 88 of Fig. 1. Fig. 9 is a detail perspectiveView of the operating arm and, Fig. 10 is a longitudinal section of oneof the rollers.

Similar numerals of reference are employed to designate correspondingparts throughout.

The device consists essentially in a baling chamber designated by thenumeral 5. This member is oblong in contour and open at its forward end.Hingedly united to the chamber is a cover 6 and rising from the Byreference to Fig. 8 it will be seen that the medial portions of thesprings bear on the top or cover 6 and when so hearing will preventupward movement of the cover. Extending forwardly from the open end ofthe casing is a track, the rails of which are designated by the numerals12 and 13.'

These rails may be of any convenient length, and j ournaled in the railsare shafts 14: upon which are arranged rollers 15, a portion of theperipheries of which extend above the upper edges of the rails 12 and13. Slidingly fitted in the baling chamber 5 is a plunger 16. Thismember may be of any suitable material and of a size to nicely fitwithin the baling chamber. It might here be stated the top or cover 6 issomewhat less in length than the length of the casing and that portionof the upper side of the casing not covered by the top 6 is providedwith a hopper 17 through which the hay to be pressed is directed intothe casing. Fixedly secured to that face of the plunger adjacent theopen end of the casing is a plunger rod 18, somewhat less in length thanthe length of the track. This member is so positioned that during itsoutward and inward movements it will bear on the rollers 15.

By reference now to Fig. 1 it will be seen that positioned between theforward ends of the rails 12 and 13 is a block 19 which extendsconsiderably in advance of the forward ends of said rails, and locatedat a point intermediate the middle and free ends of the rail 13 andspaced therefrom is a block 20. Connection between the block 19 and theblock 20 and the rail 13 is established by means of a pair of obliquelydisposed struts 21 and 22, the opposite ends of which are fixedlysecured to the blocks 19 and 20 and rail 13. Rising from the centralportion of the block 20 and extending through the outer ends of thestruts 21 and rod moved outwardly to its full extent the free end ofsaid plunger rod will extend to a point adjacent the lever, as clearlyshown by full lines in Fig. 1. Connection between thefree end of theplunger rod and lever is established by means of a link 25, the oppositeends of which are pivoted to the lever and free end of the rod 18. Withthis construction it is evident that when the lever is oscillated, in amanner to be presently described, by virtue of the link 25 the plungerand plunger rod will be reciprocated.

In order to bring about the reciprocation of the plunger and plunger rodthe follow ing construction is employed :By reference now to Fig. 1 itwill be seen that pivoted to one corner of the block 19 is an arm 26.This arm 26 in contour closely resembles a bell crank lever having armsof unequal length. The arm 26 is arranged on the upper face of the block19 and its longer side 27 is considerably greater in length than thewidth of the block 19. At a point 7 adjacent the free end of the longerside 27 the said side is provided with a downwardly directed offset 28,whereby the said free end of the longer side will be arranged below theplane of the upper side of the block 19.

The extremity of the longer side 27, when the said side is perpendicularto the length of the block 19, will be in a plane with the free end ofthe lever 24, or substantially so, and connection between the said freeend of the longer side 27 and free end of the lever 'the arm 26 and whenthe lever 24 is perpendicular to the rails 12 and 13 and the 'beamparallel with the block 19, one end of the beam will bear on theadjacent side of the lever 24. The opposite ends of the beam 32 areprovided with rollers 33 and 34 adapted to bear alternately on the lever24. 'Depending from the lower face of the beam 32 and located adjacentthe opposite ends thereof are a pair of pins 35 and 36 upon which arejournaled rollers 37 and 38 as clearly shown in Fig. 5. The rollers 37and 38 during the rotation of the beam will move into the plane of theshort side 30 of the arm 26. Fixedly secured to the beam 32 is a draftpole 39, the outer end of which is provided with a swingletree 40 towhich the draft animal is hitched.

Having now described the construction of the device its operation willbe given :Assuming that the parts are in the positions shown in Fig. 1and a draft animal is hitched to the swingletree 40 and directed to movein a circle indicated by the arrow in Fig. 1, it will be obvious, as thebeam 32 is rotated, the rollers 33 will first bear on the adjacent sideof the lever 24. After the roller is moved from engagement with thelever the roller 37 depending from the lower face of the beam willengage with the short through the chain 29, lever 24 and plunger rod 18will be drawn outwardly from the baling chamber. Owing to the fact thatthe end of the beam 32 moves in the arc of a circle eccentric with thearc in which the short side 30 of the arm 26 moves, it will be V evidentwhen the arm is moved in the position shown by dotted lines in Fig. 1,that the roller 37 will move from engagement with said arm, whereby theplunger will remain in its retracted position. As the beam continues torotate the roller 33 will move into engagement with the lever 24,whereby the latter will be forced toward the baling chamber or casing 5moving with it the plunger rod 18 and arm 26, so that the hay within thecasing or baling chamber will be compressed and at the same time the arm26 positioned to be engaged by the roller 38 at the opposite end of thebeam.

With this construction it is evident that at l each half revolution ofthe beam, the plunger will be reciprocated and it is evident that theoperation of pressing the hay will be greatly facilitated and the timeordinarily required to form a bale reduced to a minimum.

From the foregoing it is evident that I have provided a device which isexceedingly simple in construction and comparatively inexpensive ofmanufacture, embodying few engage with one side of the lever and move 7the latter in one direction, an oscillating arm pivoted at itsintermediate portion below the beam and movable in an arc eccentric withthe circle in which the beam moves,

a flexible connection between the arm and opposite to the movementimparted to it lever and means depending from the oppodirectly by thebeam. 10 site end portions of the beam and ada ted In testimony whereofI aflix my signature to alternately engage with the free en of mpresence of two Witnesses.

the arm and move the connected end of the FRANK WILLIAM EHMAN. latterfor a certain distance in the same Witnesses:

direction as the movement of the beam, MYRTLE FREEMAN,

whereby the plunger is moved in a direction R. D. MUNN.

